Answer Posted / ankurjha

Circuit Breaker:
Device to control current drawn by the load. Has the
facility of cutting the supply in case of heavy inrush of
current/ short circuit etc..

Contactors:
device to make/ break contacts as & when required. Have
control coil which is energized/de-energized as per the
control requirement.

Isolators:
Usually meant to isolate the circuit manually, so that the
circuit can be worked upon. Have fuses for potection of
load.

How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?

2339

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If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?

1973

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how to setting voltage RTCC panel

1713

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Why temperature rise is conducted in bus bars and isolators?

1417

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How good are you in resolving the commercial issues to Employer's advantage?

2414

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sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com

2627

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How does an induction motor start?

1276

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I am doing apprenticeship training at HT switch yard in NLC. How can i get electrical c license. ??? What r the rules for getting it as an apprentice? ??

1894

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What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

2237

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What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

2151

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WTA used cb?

1980

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Dry type transformers

1915

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Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

2271

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what is acceptance test in electrical engineering.

2209

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can any one tell in easy method for circulating current ??

2208

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